ls = [x * 10 for x in range(1, 11)]

print("ls[:]: ", ls[:])
print("ls[3:]: ", ls[3:])
print("ls[:3]: ", ls[:3])
print("ls[3:6]: ", ls[3:6])
print("ls[3:6:2]: ", ls[3:6:2])
print("ls[::2]: ", ls[::2])
print("ls[-3:]: ", ls[-3:])
print("ls[:-3]: ", ls[:-3])
print("ls[::-3]: ", ls[::-3])
print("ls[-100:999]: ", ls[-100:999])
